SOL 5.19 Algebraic Expression

Front

What are the variables in the expression x + y - 9?

Back

x, y

Front

Match the word problem with the expression: A teacher had 16 students. She needed to split up her class into a number of equal groups. When she was finished, she had 4 groups.

Back

16 ÷ f = 4

Front

A/An _____________ is a symbol, usually a letter that stands for an unknown number.

Back

variable

Front

Match the word problem with the expression: A battery box contains 18 batteries. Every toy needs the same number of batteries. I was able to replace the batteries in 9 toys. How many batteries did each toy need?

Back

18 ÷ u = 9

Front

Nate has 6 fewer CDs than Emily. If c represents the number of CDs Emily has, which expression tells how many CDs Nate has?

Back

c - 6

Front

What is an algebraic expression?

Back

A mathematical phrase that can include numbers, variables, and operation symbols.

Front

What does the term 'variable' mean in algebra?

Back

A symbol, usually a letter, that represents an unknown number.

Front

What is the purpose of using variables in algebraic expressions?

Back

To represent unknown values and to create general formulas.

Front

If 3x = 12, what is the value of x?

Back

x = 4

Front

What is the expression for '5 more than a number x'?

Back

x + 5